Packing device for hub-plates.



A. J. SAMS.

PACKING DEVICE FOR HUB PLATES.

APPlLICATION FILED NOV-13, 1914.

Patenteci June 15, 1915.

- mq m e Attorneys Witnesses Vice tomost effectively serve its intended To all whom it may concern:

. a snare earner anion.

ALBERT J. SAMS, OF FORT SCOTT, KANSAS, ASSIGNOR TO SMITH LOGOMOTIV E ADJUST- 1 ABLE HUB PLATE COMPANY, .OF PITTSBUBG, MNSAS.

PAtJfKING- DEVTCE FOR HUB-PLATES.

' M Specification of Letters Patent.

1,143,142. Patented June is, rare.

Application filed November P3, 1514. Serial No. 871,962.

and project into sockets 8 provided in the hub, to prevent the hub plate 4 from rotating with respect to the hub 2. The hub 2 is also provided with a diagonal grease duct or passage 9 extending from the bottom of the recess or chamber 6, to an exterior point, and a grease injector or filling cup 10 is engaged to the outer end of the duct or passage 9 for injecting or forcing grease, or its equivalent, into the recess 6 behind the hub plate 4, to force the driving box 3, and to thereby take up the lateral strain in an effective manner, and provide a cushion between the locomotive rtlrnown that I, ALBERT J. SAMs, a citizen of the United States, residing at Fort Scott, in the county of Bourbon and State. of Kansas, have invented a new and useful Packing Device for Hub-Plates, of which the following is a specification.

The present invention appertains to hub plates for locomotive driving wheels, such as disclosed in Patent N 0. 920,094, issued April 27, 1909, and aims to provide a novel and improved packing device for the hub plate.

This invention contemplates the provision of a simple and inexpensive packing device for hub plates, the device being of novel wheel hub and driving box. construction to enable the same to be readily he present invention involves a packing applied to the hub of the locomotive driving device for closing the space or gap between Wheel and hub plate, and to enable the dothe hub plate 4 and the Walls of the recess 6, for preventing the escape of the grease or lubricant, and to thereby efiectively maintain the cushion between the hub and hub plate.

In carrying out the invention, the corners of the rib 5 of the hub plate are beveled or chamfered, as at 11, adjacent the circular walls of the recess 6, metal gasket 12 is fitted snugly within the recess 6, between the bottom thereof and the hub plate, whereby the gasket 6 is adapted to rest against the outer side of the hub purpose.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combinationand arrangement of parts and in scribed and claimed, it being understood that changesin the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in its preferred embodiment in the accompanying drawing, wherein Figure l is a sectional View of a locomotive Wheel hub having the present attachment applied thereto. Fig. 2 is a plan View of the} present device. Fig. 3 is an enlarged sectional detail illustrating one of the pack Fig. 4 isa view similar to Fig.

engage the ing rings.

inner and outer circular walls of the recess 3 illustrating a slight variation. Fig- 5 IS a e packing. rings 14 and 15 are prefer- :fragmental view llustrating the pac ing ably formed from wire or similar stock of rings having a modlfied form of joint circular cross section, although stock of an- In the draw ngs, there is delineated, a at er cross section may be employed, if delocomotive driv ng axle 1, having a hub 2 ired. The packing rings are of sufiicient of the 1 driving wheel secured cross sectional area to contact simultaneously with the beveled or chamfered portions of the hub plate, the walls of the recess 6 of the hub d the adjacent face of the interposed between preferably to form the box- 3 around the axle 1. This hub plate provided with an annular rib 5 fitting snugly within an annular recess or groove 6 formed in the inner side of the hub 2. owel pins 7 are threaded into the outer slde of rib 5 thereof,

packing rings to slightl the hub plate 4, in the age.

and an annular sheethub plate against the It is evident, from the foregoing, taken in c' nection with the drawing, that the presen "devicemay be readily and inexpensively ap lied to the hub plate and hub, whereby wk 11 the grease is injected into the recess 6, i will force the gasket 12 inwardly, to provide the grease cushion between the bottom of the recess 6 and the gasket 12, and the gasket 12 being forced inwardly will bear aga 'st the hub plate-and force the hub plate yiel ably against the driving box or bearing 3. lhus, the lateral strain is taken up and cushioned in the manner of the device ,/disclosed in the said patent, supra.

15 The grease in forcing the sheet metal gasket l2 nwardly, will cause the packing rings chamfered portions 11, whereby the inner acking ring 14 will'be contracted snugly gainst the inner circ'ular wall of the recess 6, while the outer packing ring 15 will be expanded against the outer circular wall of the said recess, to effectively close the spaces or gaps between the hub plate and walls of the recess 6. This will prevent the escape of the grease in a most thorough and practical manner.

The rings 14 and 15 being split or divided,

may be readily snapped over the axle, and

the gasket 12 may be split or divided as at 17, for enabling it to be snapped or sprung over the axle, ii' the gasket cannot be applied when the wheel and axle are separated. As

suggested in Fig. 4, the corners of the hub plate IL may be rounded as at 11, for the engagement of the packing rings, and as illustrated in Fig. 5, the ends 16 ofthe packing rings may be filed square to abut against each other. 40 Having thus described the invention, what is claimed as new is:

1. In a device of the character described, a hub having an annular recess, an annular hub plate fitting within the said recess, an annular gasket disposed in the recess between the bottom thereof and the hub plate, and a packing ring disposed between the gasket and hub plai 'i to contact with one wall of the recess. 7

14 and 15 to be carried against the beveled the circular walls of the said recess.

3. In a device of the character described, a hub having an annular recess, an annular hub plate fitting within the said recess, an annular gasketdisposed in tlie recess between the bottom thereof and the hub plate,

and a resilient packing ring disposed between the gasket and hub plate and contacting with one wall of the recess, one of the second and third mentioned parts being provided with means for forcing the packing ring against the said wall of the recess when the gasket is pressed toward the hub plate. 4. In a device of the character described, a hub,having an annular recess, an annular hub plate fitting within the said recess, an annular gasket disposed in the recess between the bottom thereof and the hub plate, a resilient packing ring disposed between the gasket and hub plate and contacting with one wall of the recess, and one of the second and third mentioned parts having a beveled portion for the contact of the packing ring when the gasket is pressed toward the hub plate and thus to force the packing ring against the said wall of the recess.

5. In a device of the character described, 7

a hub having an annular recess, anannular hub plate fitting within the said recess and having beveled portions, an annular gasket fitted within the said recess, and resilient packing rings arranged between the said beveled portions and the gasket to contact with the circular walls of the recess when the gasket is pressed toward the hub plate.

In testimony that I claim 'the foregoing as my own, 1 have hereto aliixed my signature in the presence of two witnesses.

ALBERT J. SAMb.

Witnesses:. I

Hanar L. Rooms,

A. A. MELLE'ITE. 

